structural elastic bonDinG technoloGY For sikaForce® Pur aDhesiVes

PowerflexTechnology

Powerflex – structural elasticaDhesiVe technoloGY

Powerflex iS a UNiQUe aDheSive TechNoLoGY combining advantages of both structural- and elastic adhesives. Powerflex makes the new generation sikaForce® adhesives an effective solution for bonding and assembly of lightweight vehicles, fiberglass boats, metal fabrications and virtually any application that requires a strong, reliable bond.

constant performance over service temperatureWhile 1-component polyurethane adhesives provide excellent cold temperature performance regarding elongation, their potential in strength (e-Modulus) is insufficient for high strength bonds. in contrary to this, 2-component structural adhesives offer enormous potential for mechanical strength but are lacking the necessary flexibility at low temperatures needed for bonding mixed materials. standard 2-component adhesives also show a significant loss of mechanical strength at elevated temperatures (e.g., 80°c). the new generation of sikaForce® 2c polyurethane adhesives with Powerflex inside shows a substantially higher strength retention rate in the heat while keeping its elasticity over the entire service temperature.

Powerflex stands for a paradigm shiftthe new sikaForce® structural adhesives feature a unique combination of structural strength and permanent elasticity. this key performance feature is a potential game changer in the composite industry as it allows to formulate sikaForce® structural adhesives with exceptional mechanical strength without compromising the elongation. Powerflex breaks the boundary of strength- and elongation ratio and is therefore becoming the preferred solution when bonding materials with different thermal expansion coefficients (e.g. cFrP and alu-minum). the Powerflex technology therefore provides the end user with unimagined design possibilities involving composite materials.

E-M

odul

us (M

Pa)

-80 °C

High mechanics, very brittle

Service temperature range

Soft, elastic (tough)

-40 °C 0 °C 40 °C 80 °C 120 °C

Standard structural adhesives

SikaForce® with Powerflex Elastic adhesives

Elon

gatio

n (%

)

E-Modulus (MPa)

Powerflex

50

20

50

100

200

500

100 200 500

Boundary for Strength /Elongation ratio

Possibilities of sikaForce® with Powerflex new customer requirements standard structural adhesives

the Powerflex technology provides the highest levels of strength combined with lasting elasticity even at low temperatures. With the unique performance characterstics sikaForce® polyurethane adhesives with Powerflex inside outperform the state-of-the-art 2c structural adhesives designed to bond lightweight mate-

rials. they are designed to create long lasting bonds throughout the service life of bonded components no matter what climate conditions they face. Powerflex represents a new generation of sikaForce® structural adhesives making them the ideal solution with unmatched product features.

sikaForce®–800 series With Powerflex insiDe

key features of SikaForce® adhesives with Powerflex inside

́ combines the high strength of structural- with the flexibility of elastic adhesives

́ Keeps flexibility even at low temperatures

́ Provides stable mechanical strength over service temperature ́ high energy absorption capacity ́ no smell compared to other technologies

Bringing innovation to market trends

SikaForce®-803 SikaForce®-840

technology 2c Polyurethane 2c Polyurethane

Mixing ratio 1:1 1:1

color (mixed) black black

Viscosity thixotropic paste thixotropic paste

Pot life 45 minutes 7 minutes

handling time 120 minutes 15 minutes

lapshear strength 10.0 n/mm² 15.0 n/mm²

tensile strength 10.0 n/mm² 15.0 n/mm²

elongation 250% 100%

e-Modulus 30 n/mm² 400 n/mm²

Glass transition temp. -50°c -45°c

SikaForce®-800 SerieS provides unique mechanical characteristics making it an ideal solution for mixed material- and composite bonding. this new generation of structural adhesives brings innovations to market trends and is becoming an integral part when bonding modern lightweight materials.

LiGhTWeiGhTallowing multimaterial

mix for mass and weight reduction

ProceSS eFFicieNcYProviding solutions for ultimate process

efficiency

DeSiGNenabling modern design with new

materials

DUraBiLiTYcreating long lasting

bonds

Global but local PartnershiP

our most current General sales conditions shall apply. Please consult the Data sheet prior to any use and processing.

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Who We aresika is a specialty chemicals company with a leading position in thedevelopment and production of systems and products for bonding,sealing, damping, reinforcing and protecting in the building sector andthe motor vehicle industry. sika’s product lines feature concrete admix-tures, mortars, sealants and adhesives, structural strengthening sys-tems, industrial flooring as well as roofing and waterproofing systems.

For More inForMation:

Sika ServiceS aGtueffenwies 16ch-8048 Zurichswitzerland

coNTacT Phone: +41 58 436 40 40Fax: +41 58 436 55 30www.sika.com

www.sika.com

structural elastic bonDinG technoloGYFor sikaForce® Pur aDhesiVes

Global but local PartnershiP

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Who We aresika is a specialty chemicals company with a leading position in thedevelopment and production of systems and products for bonding,sealing, damping, reinforcing and protecting in the building sector andthe motor vehicle industry. sika’s product lines feature concrete admix-tures, mortars, sealants and adhesives, structural strengthening sys-tems, industrial flooring as well as roofing and waterproofing systems.

Sika ServiceS aGtueffenwies 168048 Zurichswitzerland

coNTacT Phone: +41 58 436 40 40Fax: +41 58 436 55 30www.sika.com